SERIES 60 SERVICE MANUAL The nested roller follower type rocker arms transmit camshaft motion directly to the valves and injectors. See Figure 1-21. 1. Roller Follower 4. Exhaust Valve Rocker Arm 2. Injector Rocker Arm 5. Camshaft 3. Intake Valve Rocker Arm Figure 1-21 Cylinder Head Assembly All information subject to change without notice. (Rev. 2005) 6SE483 0507 Copyright © 2005 DETROIT DIESEL CORPORATION 1-31